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Adding% sign to prop.table output

I am trying to add the% sign to the output of prop.table for use in Sweave . My code was below:

 m <- matrix(1:4,2) dimnames(m) <- list(c("A", "B"), c("C", "D")) prop.table(m,1)*100 CD A 25.00000 75.00000 B 33.33333 66.66667 paste(round(prop.table(m,1)*100, 3), "%", sep = "") [1] "25%" "33.333%" "75%" "66.667%" paste(sprintf("%.1f", prop.table(m,1)*100), "%", sep = "") [1] "25.0%" "33.3%" "75.0%" "66.7%"

Using paste will change the class from matrix to character. I would really appreciate if anyone would give me the right solution. Thanks

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2 answers

Most functions designed for working with vectors also accept matrices, but return a vector instead of a matrix: paste , sprintf , etc. You can use apply , which will return the matrix.

 apply( prop.table(m,1)*100, 2, function(u) sprintf( "%.1f%%", u ) )
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Another solution could be to replace the contents of the matrix:

 m2 <- m m2[] <- sprintf("%.1f%%",round(prop.table(m,1)*100, 3)) m2 # CD # A "25.0%" "75.0%" # B "33.3%" "66.7%"
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Source: https://habr.com/ru/post/907892/

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